提供各类精美PPT模板下载
当前位置:首页 > Word文档 >

人音版小学音乐二年级上册夏天的阳光说课稿

  • 新人教版高中英语选修2Unit 2 Reading for writing教学设计

    新人教版高中英语选修2Unit 2 Reading for writing教学设计

    The theme of this section is to express people's views on studying abroad. With the continuous development of Chinese economic construction, especially the general improvement of people's living standards, the number of Chinese students studying abroad at their own expense is on the rise. Many students and parents turn their attention to the world and regard studying abroad as an effective way to improve their quality, broaden their horizons and master the world's advanced scientific knowledge, which is very important for the fever of going abroad. Studying abroad is also an important decision made by a family for their children. Therefore, it is of great social significance to discuss this issue. The theme of this section is the column discussion in the newspaper: the advantages and disadvantages of studying abroad. The discourse is about two parents' contribution letters on this issue. They respectively express their own positions. One thinks that the disadvantages outweigh the advantages, and the other thinks that the advantages outweigh the disadvantages. The two parents' arguments are well founded and logical. It is worth noting that the two authors do not express their views on studying abroad from an individual point of view, but from a national or even global point of view. These two articles have the characteristics of both letters and argumentative essays1.Guide the students to read these two articles, and understand the author's point of view and argument ideas2.Help the students to summarize the structure and writing methods of argumentative writing, and guides students to correctly understand the advantages and disadvantages of studying abroad3.Cultivate students' ability to analyze problems objectively, comprehensively and deeply

  • 新人教版高中英语选修2Unit 2 Using langauge-Listening教学设计

    新人教版高中英语选修2Unit 2 Using langauge-Listening教学设计

    ? B: Absolutely! Getting involved with Chinese cultural activities there definitely helped a lot. I got to practice my Chinese on a daily basis, and I could learn how native Chinese speakers spoke.? A: What do you feel is your biggest achievement?? B: Learning Chinese characters! I have learnt about 1,500 so far. When I first started, I didn't think it was even going to be possible to learn so many, but now I find that I can read signs, menus, and even some easy newspaper articles.? A: What are you most keen on?? B: I've really become keen on learning more about the Chinese culture, in particular Chinese calligraphy. As I have learnt Chinese characters, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way. ? A: Finally, what do you want to say to anyone interested in learning Chinese?? I have really become keen on learning more about the Chinese culture, in particular Chinese Calligraphy. As I have learnt Chinese character, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way.? A: Finally, what do you want to say to anyone interested in learning Chinese?? B: I'd say, give it a shot! While some aspects may be difficult, it is quite rewarding and you will be happy that you tried.? A: Thanks for your time. ? B:You're welcome.

  • 新人教版高中英语选修2Unit 3 Using langauge-Listening教学设计

    新人教版高中英语选修2Unit 3 Using langauge-Listening教学设计

    1. How is Hunan cuisine somewhat different from Sichuan cuisine?The heat in Sichuan cuisine comes from chilies and Sichuan peppercorns. Human cuisine is often hotter and the heat comes from just chilies.2.What are the reasons why Hunan people like spicy food?Because they are a bold people. But many Chinese people think that hot food helps them overcome the effects of rainy or wet weather.3.Why do so many people love steamed fish head covered with chilies?People love it because the meat is quite tender and there are very few small bones.4.Why does Tingting recommend bridge tofu instead of dry pot duck with golden buns?Because bridge tofu has a lighter taste.5 .Why is red braised pork the most famous dish?Because Chairman Mao was from Hunan, and this was his favorite food.Step 5: Instruct students to make a short presentation to the class about your choice. Use the example and useful phrases below to help them.? In groups of three, discuss what types of restaurant you would like to take a foreign visitor to, and why. Then take turns role-playing taking your foreign guest to the restaurant you have chosen. One of you should act as the foreign guest, one as the Chinese host, and one as the waiter or waitress. You may start like this:? EXAMPLE? A: I really love spicy food, so what dish would you recommend?? B: I suggest Mapo tofu.? A: Really ? what's that?

  • 新人教版高中英语选修2Unit 4 Learning about Language教学设计

    新人教版高中英语选修2Unit 4 Learning about Language教学设计

    This section guides students to pay attention to the typical context of vocabulary use, helps students accumulate vocabulary around the key vocabulary of this unit, and uses the learned words and word chunks in different contexts to deeply understand their meaning and usage, so as to achieve the purpose of review and consolidation.The teaching design activities aim to guide students to pay attention to the typical context in which the target vocabulary is used, as well as the common vocabulary used in collocation, so that students can complete the sentence with correct words. In terms of vocabulary learning strategies, this unit focuses on cultivating students' ability to pay attention to collocation of words and to use word blocks to express meaning.For vocabulary learning, it is not enough just to know the meaning of a single word, but the most important thing is to master the common collocations of words, namely word blocks.Teachers should timely guide students to summarize common vocabulary collocation, such as verb and noun collocation, verb and preposition collocation, preposition and noun collocation, and so on.1. Guide students to understand and consolidate the meaning and usage of the vocabulary in the context, 2. Guide the students to use the unit topic vocabulary in a richer context3. Let the students sort out and accumulate the accumulated vocabulary, establishes the semantic connection between the vocabulary,4. Enable students to understand and master the vocabulary more effectivelyGuiding the Ss to use unit topic words and the sentence patterns in a richer context.

  • 新人教版高中英语选修2Unit 4 Reading for writing教学设计

    新人教版高中英语选修2Unit 4 Reading for writing教学设计

    假定你是英国的Jack,打算来中国旅行,请你给你的中国笔友李华写一封信,要点如下:1.你的旅行计划:北京→泰山→杭州;2.征求建议并询问他是否愿意充当你的导游。注意:1.词数80左右(开头和结尾已给出,不计入总词数);2.可以适当增加细节,以使行文连贯。参考词汇:故宫 the Forbidden City;泰山 Mount TaiDear Li Hua,I'm glad to tell you that 'm going to visit China.First,I am planning to visit Beijing,the capitalof China,where I am looking forward to enjoying the Great Wall,the Forbidden City and somebeautiful parks.Then I intend to go to visit Mount Tai in Shandong Province.I've heard that it is one ofthe most famous mountains in China and I can't wait to enjoy the amazing sunrise there.After that,I amalso going to Hangzhou.It is said that it is a beautiful modern city with breathtaking natural sights,among which the West Lake is a well- known tourist attraction.What do you think of my travel plan? Will you act as my guide? Hope to hear from you soon.

  • 新人教版高中英语选修2Unit 4 Using langauge-Listening教学设计

    新人教版高中英语选修2Unit 4 Using langauge-Listening教学设计

    The theme of the listening section is " talking about scenery and culture along a journey."The part is designed to further lead the students to understand Canadian natural geography and social environment, and integrated into the cultural contrast by mentioning the long train journey from Beijing to Moscow routes. On this basis, the part activates students related travel experience, lets the student serial dialogue, guides the student to explore further the pleasure and meaning of the long journey, and Chinese and foreign cultural comparison.The part also provides a framework for the continuation of the dialogue, which is designed to provide a framework for students to successfully complete their oral expressions, and to incorporate an important trading strategy to end the dialogue naturally.1. Help students to understand and master some common English idioms in the context, and experience the expression effect of English idioms.2. Guide the students to understand the identity of different people in the listening context, and finish the dialogue according to their own experience.3. Instruct the students to use appropriate language to express surprise and curiosity about space and place in the dialogue, and master the oral strategy of ending the dialogue naturally.1. Instruct students to grasp the key information and important details of the dialogue.2. Instruct students to conduct a similar talk on the relevant topic.

  • 新人教版高中英语选修2Unit 5 Learning about Language教学设计

    新人教版高中英语选修2Unit 5 Learning about Language教学设计

    The purpose of this section of vocabulary exercises is to consolidate the key words in the first part of the reading text, let the students write the words according to the English definition, and focus on the detection of the meaning and spelling of the new words. The teaching design includes use English definition to explain words, which is conducive to improving students' interest in vocabulary learning, cultivating their sense of English language and thinking in English, and making students willing to use this method to better grasp the meaning of words, expand their vocabulary, and improve their ability of vocabulary application. Besides, the design offers more context including sentences and short passage for students to practice words flexibly.1. Guide students to understand and consolidate the meaning and usage of the vocabulary in the context, 2. Guide the students to use the unit topic vocabulary in a richer context3. Let the students sort out and accumulate the accumulated vocabulary, establishes the semantic connection between the vocabulary,4. Enable students to understand and master the vocabulary more effectivelyGuiding the Ss to use unit topic words and the sentence patterns in a richer context.Step1: Read the passage about chemical burns and fill in the blanks with the correct forms of the words in the box.

  • 新人教版高中英语选修2Unit 5 Reading and thinking教学设计

    新人教版高中英语选修2Unit 5 Reading and thinking教学设计

    The theme of this activity is to learn the first aid knowledge of burns. Burns is common in life, but there are some misunderstandings in manual treatment. This activity provides students with correct first aid methods, so as not to take them for granted in an emergency. This section guides students to analyze the causes of scald and help students avoid such things. From the perspective of text structure and collaborative features, the text is expository. Expository, with explanation as the main way of expression, transmits knowledge and information to readers by analyzing concepts and elaborating examples. This text arranges the information in logical order, clearly presents three parts of the content through the subtitle, accurately describes the causes, types, characteristics and first aid measures of burns, and some paragraphs use topic sentences to summarize the main idea, and the level is very clear.1. Guide students to understand the causes, types, characteristics and first aid methods of burns, through reading2. Enhance students’ ability to deal withburnss and their awareness of burns prevention3. Enable students to improve the ability to judge the types of texts accurately and to master the characteristics and writing techniques of expository texts.Guide students to understand the causes, types, characteristics and first aid methods of burns, through readingStep1: Lead in by discussing the related topic:1. What first-aid techniques do you know of ?CPR; mouth to mouth artificial respiration; the Heimlich Manoeuvre

  • 新人教版高中英语选修2Unit 5 Using langauge-Listening教学设计

    新人教版高中英语选修2Unit 5 Using langauge-Listening教学设计

    The theme of this section is to learn how to make emergency calls. Students should learn how to make emergency calls not only in China, but also in foreign countries in English, so that they can be prepared for future situations outside the home.The emergency telephone number is a vital hotline, which should be the most clear, rapid and effective communication with the acute operator.This section helps students to understand the emergency calls in some countries and the precautions for making emergency calls. Through the study of this section, students can accumulate common expressions and sentence patterns in this context. 1.Help students accumulate emergency telephone numbers in different countries and learn more about first aid2.Guide the students to understand the contents and instructions of the telephone, grasp the characteristics of the emergency telephone and the requirements of the emergency telephone.3.Guide students to understand the first aid instructions of the operators.4.Enable Ss to make simulated emergency calls with their partners in the language they have learned1. Instruct students to grasp the key information and important details of the dialogue.2. Instruct students to conduct a similar talk on the relevant topic.Step1:Look and discuss:Match the pictures below to the medical emergencies, and then discuss the questions in groups.

  • XX年下半年第一学期国旗下讲话稿

    XX年下半年第一学期国旗下讲话稿

    老师、同学们:同学们,今日的习惯,决定明天的你们。因此,在今天的学习生活中,同学们一定要养成一些好的习惯,比如:习惯于主动打扫卫生,形成热爱劳动的习惯;习惯于说声“谢谢”、“你好”、“对不起”,形成以礼待人的好习惯;习惯于每天坚持锻炼,形成健美的体魄;同学交往中习惯于理解、宽容,便能化干戈为玉帛;习惯于去用心观察,才能形成好的观察能力;习惯于提前预习,课后复习,才能形成高效的学习方法……法国学者培根说过,“习惯是人生的主宰,人们应该努力追求好习惯。”是的,行为习惯就像我们身上的指南针,指引着我们的行动。爱因斯坦有句名言,“一个人取得的成绩往往取决于性格上的伟大。”而构成性格的,正是日常生活中的一个个好习惯。好习惯养成得越多,个人的能力就越强。养成好的习惯,就如同为梦想插上了翅膀,它将为人生的成功打下坚定的基石。小时候的 鲁迅 先生,就养成了不迟到的习惯,他要求自己抓紧时间,时刻叮嘱自己凡事都要早做。这位以“小跑走完一生”的作家,在中国文学史上留下了辉煌的业绩。可见,行为习惯对一个人各方面的素质起了决定性的作用。

  • 关于小学教师顶岗实习个人心得体会参考范文

    关于小学教师顶岗实习个人心得体会参考范文

    在实习的日子里,我们主要负责二年级、五年级和六年级的体育课教学。在实习最开始的时候我们看指导老师上课,以一个“老师”的身份看他是如何上课的,学习他如何传授知识、驾驭课堂,如何控制授课时间等等。通过听课我发现教师不仅对知识和技能的把握很重要,对学生的课堂纪律、积极性的调动都很重要。只有把握好课堂纪律、学生学习的积极性,才能让我们的学生在上课的时候真正的学到运动技能,并真正达到锻炼身体的目的。

  • 高教版中职数学基础模块下册:6.3《等比数列》教学设计

    高教版中职数学基础模块下册:6.3《等比数列》教学设计

    课题序号6-3授课形式讲授与练习课题名称等比数列课时2教学 目标知识 目标理解并掌握等比数列的概念,掌握并能应用等比数列的通项公式及前n项和公式。能力 目标通过公式的推导和应用,使学生体会从特殊到一般,再从一般到特殊的思维规律,初步形成认识问题、分析问题、解决问题的一般思路和方法 。素质 目标通过对等比数列知识的学习,培养学生细心观察、认真分析、正确总结的科学思维习惯和严谨的学习态度。教学 重点等比数列的概念及通项公式、前n项和公式的推导过程及运用。教学 难点对等比数列的通项公式与求和公式变式运用。教学内容 调整无学生知识与 能力准备数列的概念课后拓展 练习 习题(P.21): 3,4.教学 反思 教研室 审核

  • 高教版中职数学基础模块下册:9.5《柱、锥、球及其简单组合体》教学设计

    高教版中职数学基础模块下册:9.5《柱、锥、球及其简单组合体》教学设计

    课题序号 授课班级 授课课时2授课形式 教学方法 授课章节 名称9.5柱、锥、球及其组合体使用教具 教学目的1、使学生认识柱、锥、球及其组合体的结构特征,并能运用这些特征描述生活中简单物体的结构。 2、让学生了解柱、锥、球的侧面积和体积的计算公式。 3、培养学生观察能力、计算能力。

  • 高教版中职数学基础模块下册:6.2《等差数列》教学设计

    高教版中职数学基础模块下册:6.2《等差数列》教学设计

    系(部)医药授课教师戚文撷授课班级11(5),11(6)班授课类型新授课授课时数2课时授课周数第一周授课日期2012.2.15授课地点 教室课题第六章数列分课题§6.2 等差数列教学目标1. 理解等差数列的概念,掌握等差数列的通项公式;掌握等差中项的概念. 2. 逐步灵活应用等差数列的概念和通项公式解决问题. 3.等差数列的前N项之和 . 4.培养学生分析、比较、归纳的逻辑思维能力. . 2. 3.教学重点等差数列的概念及其通项公式. 教学难点等差数列通项公式的灵活运用. 教学方法情境教学法、自主探究式教学方法教学器材及设备黑板、粉笔复习提问提问内容姓名成绩1.数列的定义? 答: 2. 数列的通项公式? 答: 板书设计 §6.2.1等差数列的概念 1. 1.等差数列的定义 公差:d 2.常数列 3.等差数列的通项公式 an=a1+(n-1)d. 等差数列的前n 项和公式: 例题 练习作业布置习题第1,2题.课后小结本节课主要采用自主探究式教学方法.充分利用现实情景,尽可能地增加教学过程的趣味性、实践性.我再整个教学中强调学生的主动参与,让学生自己去分析、探索,在探索过程中研究和领悟得出的结论,从而达到使学生既获得知识又发展智能的目的.

  • 高教版中职数学基础模块下册:10.1《计数原理》教学设计

    高教版中职数学基础模块下册:10.1《计数原理》教学设计

    授课 日期 班级16高造价 课题: §10.1 计数原理 教学目的要求: 1.掌握分类计数原理与分步计数原理的概念和区别; 2.能利用两个原理分析和解决一些简单的应用问题; 3.通过对一些应用问题的分析,培养自己的归纳概括和逻辑判断能力. 教学重点、难点: 两个原理的概念与区别 授课方法: 任务驱动法 小组合作学习法 教学参考及教具(含多媒体教学设备): 《单招教学大纲》、课件 授课执行情况及分析: 板书设计或授课提纲 §10.1 计数原理 1、加法原理 2、乘法原理 3、两个原理的区别

  • 高教版中职数学基础模块下册:10.2《概率》教学设计

    高教版中职数学基础模块下册:10.2《概率》教学设计

    课程课题随机事件和概率授课教师李丹丹学时数2授课班级 授课时间 教学地点 背景分析正确使用两个基本原理的前提是要学生清楚两个基本原理使用的条件;分类用加法原理,分步用乘法原理,单纯这点学生是容易理解的,问题在于怎样合理地进行分类和分步教学中给出的练习均在课本例题的基础上稍加改动过的,目的就在于帮助学生对这一知识的理解与应用 学习目标 设 定知识目标能力(技能)目标态度与情感目标1、理解随机试验、随机事件、必然事件、不可能事件等概念 2、理解基本事件空间、基本事件的概念,会用集合表示基本事件空间和事件 1 会用随机试验、随机事件、必然事件、不可能事件等概念 2 会用基本事件空间、基本事件的概念,会用集合表示基本事件空间和事件 3、掌握事件的基本关系与运算 了解学习本章的意义,激发学生的兴趣. 学习任务 描 述 任务一,随机试验、随机事件、必然事件、不可能事件等概念 任务二,理解基本事件空间、基本事件的概念,会用集合表示基本事件空间和事件

  • 高教版中职数学基础模块下册:10.3《总体、样本与抽样方法》教学设计

    高教版中职数学基础模块下册:10.3《总体、样本与抽样方法》教学设计

    教 学 过 程教师 行为学生 行为教学 意图时间 *揭示课题 10.3总体、样本与抽样方法(一) *创设情境 兴趣导入 【实验】 商店进了一批苹果,小王从中任意选取了10个苹果,编上号并称出质量.得到下面的数据(如表10-6所示): 苹果编号12345678910质量(kg)0.210.170.190.160.200.220.210.180.190.17 利用这些数据,就可以估计出这批苹果的平均质量及苹果的大小是否均匀. 介绍 质疑 讲解 说明 了解 思考 启发 学生思考 0 10*动脑思考 探索新知 【新知识】 在统计中,所研究对象的全体叫做总体,组成总体的每个对象叫做个体. 上面的实验中,这批苹果的质量是研究对象的总体,每个苹果的质量是研究的个体. 讲解 说明 引领 分析 理解 记忆 带领 学生 分析 20*巩固知识 典型例题 【知识巩固】 例1 研究某班学生上学期数学期末考试成绩,指出其中的总体与个体. 解 该班所有学生的数学期末考试成绩是总体,每一个学生的数学期末考试成绩是个体. 【试一试】 我们经常用灯泡的使用寿命来衡量灯炮的质量.指出在鉴定一批灯泡的质量中的总体与个体. 说明 强调 引领 观察 思考 主动 求解 通过例题进一步领会 35

  • 高教版中职数学基础模块下册:10.4《用样本估计总体》教学设计

    高教版中职数学基础模块下册:10.4《用样本估计总体》教学设计

    教 学 过 程教师 行为学生 行为教学 意图时间 *揭示课题 10.4 用样本估计总体 *创设情境 兴趣导入 【知识回顾】 初中我们曾经学习过频数分布图和频数分布表,利用它们可以清楚地看到数据分布在各个组内的个数. 【知识巩固】 例1 某工厂从去年全年生产某种零件的日产记录(件)中随机抽取30份,得到以下数据: 346 345 347 357 349 352 341 345 358 350 354 344 346 342 345 358 348 345 346 357 350 345 352 349 346 356 351 355 352 348 列出频率分布表. 解 分析样本的数据.其最大值是358,最小值是341,它们的差是358-341=17.取组距为3,确定分点,将数据分为6组. 列出频数分布表 【小提示】 设定分点数值时需要考虑分点值不要与样本数据重合. 分 组频 数 累 计频 数340.5~343.5┬2343.5~346.5正 正10346.5~349.5正5349.5~352.5正  ̄6352.5~355.5┬2355.5~358.5正5合 计3030 介绍 质疑 引领 分析 讲解 说明 了解 观察 思考 解答 启发 学生思考 0 10*动脑思考 探索新知 【新知识】 各组内数据的个数,叫做该组的频数.每组的频数与全体数据的个数之比叫做该组的频率. 计算上面频数分布表中各组的频率,得到频率分布表如表10-8所示. 表10-8 分 组频 数频 率340.5~343.520.067343.5~346.5100.333346.5~349.550.167349.5~352.560.2352.5~355.520.067355.5~358.550.166合 计301.000 根据频率分布表,可以画出频率分布直方图(如图10-4). 图10-4 频率分布直方图的横轴表示数据分组情况,以组距为单位;纵轴表示频率与组距之比.因此,某一组距的频率数值上等于对应矩形的面积. 【想一想】 各小矩形的面积之和应该等于1.为什么呢? 【新知识】 图10-4显示,日产量为344~346件的天数最多,其频率等于该矩形的面积,即 . 根据样本的数据,可以推测,去年的生产这种零件情况:去年约有的天数日产量为344~346件. 频率分布直方图可以直观地反映样本数据的分布情况.由此可以推断和估计总体中某事件发生的概率.样本选择得恰当,这种估计是比较可信的. 如上所述,用样本的频率分布估计总体的步骤为: (1) 选择恰当的抽样方法得到样本数据; (2) 计算数据最大值和最小值、确定组距和组数,确定分点并列出频率分布表; (3) 绘制频率分布直方图; (4) 观察频率分布表与频率分布直方图,根据样本的频率分布,估计总体中某事件发生的概率. 【软件链接】 利用与教材配套的软件(也可以使用其他软件),可以方便的绘制样本数据的频率分布直方图,如图10-5所示. 图10?5 讲解 说明 引领 分析 仔细 分析 关键 语句 观察 理解 记忆 带领 学生 分析 25

  • 高效课堂教学培训个人心得体会八篇

    高效课堂教学培训个人心得体会八篇

    一是教师讲得多,学生学得少。  学生是课堂教学的主体,这是提教师们经常用说到的课改理念,但在实际的教学中确并没有有效贯彻,许多教师在上课时还是“满堂灌”,一讲到底。要发挥学生的主体作用,就必须让学生参与到学习中来自主的学习,就必须保证学生有学习思考的时间和空间,可这种方式课堂基本被教师霸占,学和理被动的接受,要本就不能主动的学习。洋思中学的实践证明,课本上的知识有百分之八十是学生通过自学能学会的,根本就不需要教师多讲,并对课堂教学作出了规定,一节课教师纯讲时间不超过10分钟。我校也曾要求教师不能满堂讲,把讲授时间控制在25分钟,提倡引导学生自主学习,但效果不明显。要发挥学生学习的主体作用,就必须从引导学生预习、鼓励课堂展示、保证当堂训练时间和进行课堂检测这几个环节上多下功夫。在课堂要做到“三讲三不讲”,“三讲”即:讲核心的问题,讲学生思路和方法,讲知识缺陷和易混易错知识,“三不讲”即:学生会了的不讲,学生能自学会的不讲,讲了学生也不会的不讲。

  • 精编教师个人新课标学习心得体会优选例文

    精编教师个人新课标学习心得体会优选例文

    我将根据新的语文能力实践系统,致力于学生语文综合素质的提高,促进语文课程的呈现方式和学生学习方式的转变,确立学生在学习中的主体地位,努力给学生创造一个有利于素质教育的空间。  对于小学语文教学来说,既要转变教的方式又要转变学的方式,培养和形成“自主、合作、探究”的学习方式,在这两个转变中,教的方式转变是主要矛盾。教的方式一转变,学的方式也随之转变。学的方式转变可以理情地在课堂中呈现,证明教的方式转变,证明教师新理念的真正树立。课改实践告诉我们,没有坚定的新课程理念,真正意义上的教与学方式的转变是不可能的。把课标学习与教材教法研究结合起来:要钻研新教材,理解和把握新教材,用好新教材,要重视教学反思,个案研究和收集,要牢记验证课标和检验教材的实验任务。

上一页123...386387388389390391392393394395396397下一页
提供各类高质量Word文档下载,PPT模板下载,PPT背景图片下载,免费ppt模板下载,ppt特效动画,PPT模板免费下载,专注素材下载!

PPT全称是PowerPoint,LFPPT为你提供免费PPT模板下载资源。让你10秒轻松搞定幻灯片制作,打造⾼颜值的丰富演示文稿素材模版合集。